Sand-beater.



v A. G. J. RAPP.

SAND HEATER.

APPLICATION FILED JULY I4. 1916.

1,280,838. Patented 001;. 8,1918.

2 SHEETS-SHEET I.

. 'Ji Z W A. G. J. RAPP.

SAND BEATER.

APPLICATION nuzn JULY 14. I916.

Patented Oct. 8, 1918.

2 SHEETS-SHEET 2 A1260 rugs 'AX ILG. .1, mr, enem I tINoIs, AssIeNon "10 LINK-BELT COMPANY, or CHICAGO, ILLINO S, A- CORPORATION or ILLINOIS.

' SAND-HEATER.

' To all whom it may cohcem:

Be it known'that I, AxE G. J. RAPP, a citizen of the"United' States, residing at Chicag0,--in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Sand-Beaters, of

: divided material.

i arated by a violent blow.

lVIy machine is expected to take the material: in" question, which may be finely 'd 1- vided or may be wet and adhesive. It is first beaten or broken, and the particles sep- This action 7 drives it toward the side of the inclosure.

A further separating effect or pulverizing or breaking up of the material is produced by a curtain of swinging rods.

This 'curtain alsoreduces to aminimum the violent discharge of the material agalnst the walls of the housing, which, when the material is adhesive, would result in accumulating masses of material on the, housing walls.

I series of violent blows delivered tothe ma- 1 -terial as it falls through the beater zone;

The material is also'liable more or less to adhere to the curtain of rods and possibly to the beater itself.

-Among the objects-of my invention are therefore to break up such material by a to further break it up or separate its par- .ticles and'prevent their being thrown against the housing walls after they leave the beater,

and then to continuously andautomatically clear the walls, the interrupting curtain, and

. I My invention is illustrated more or less diagrammatically in the i Y the beater, from adhering particles.

'Other objects of the invention will appear from time to time in the specification.

accompanying drawings, wherein- Figure 1 is a plan view. f

Fig. 2 'is a section along the line 2-;2 of

' Fig. 1.

.Fig. 3 is a detail showing the arrange- I ment of the beating arm.

' Like parts are indicated by like letters throughout the several figures.

A is a foundation wall containing-a hop- ,lper A A is a discharge chute leading therefrom, A", A are parallel upwardly extend- Specifieation of Letters Patent. Application filed Jul I-i. 191a. S er1a1No.109,208;

Patented 0a. 8,1918.

being inclined with respect to the group on Y the other side, and both groups-being so arranged'that material being struck by these beater arms when they are in a substantially .vertical position and above the hub will be concentrated toward the center of the housing. That is to say, as the shaft rotates in a clockwise direction the front faces of the arms are inclined inwardly and rearwardly. B is a pinion on the shaft B in mesh with a gear B, which is rotatably mounted on the frame A. B is a pini'pn driven by the gear B, and it is in mesh ith a gear B which gear is mounted on a shaftv B rotatably mounted on the frames A", A". This shaft carries cams B".

C is a housing open at the bottom and closed on all four sides and at the top. It is p pivoted at C on the frames A, A. lhe housing is supported at its other end on a stop or anvil C upon which it rests. C is a supply hopper discharging into the housing.

immediately above the shaft B so that material fed to it may bestruck by the beater arms. C is a stirrup projecting upwardly from the housing C. It carries the rollers C in the path of the cams B so that as the cam rotates the roller will be raised, lifting .the housing. As this cam further rotates the roller will drop off the endof the cam and the housing be allowed to drop down on the anvil C Rods D depend downwardly from the top of the housing in front of the shaft. The rods are arranged in three tiers or banks as indicated and swing freely. They extend down so far that all the material which is hit by the beater arms'and projected forward strikes against them or passes through them so that they serve as a flexible curtain or interruption to arrest and deflect the material and'to prevent too great a discharge of material against the end of the housing. i

The curtain of rods through which way little of the materialwill pass, serves, of

course, to break up and mix the material,

but it also serves-to interrupt and prevent any currents which might otherwise. cause waste ofmaterial and which might prevent satisfactory mixing. I v

- It will be evident that while I have shown in my drawings anoperative device, still shape and arrangement of parts without de- I parting. materially from the spirit of my in many changes might be made both in size,

- .vention, and I wish therefore that my draw- '7 ings be regarded v he use and operation of my device are as in a" sense diagrammatic.

as follows:

Material such as sand, dust, coal or the like which 18 to be" broken up or mixed,

" is fed into the hopper at the to while the shaft is rotating-rapidl All t e material as it comes in is struc by thebeaters or curtain of bars.

paddles and projected forwardly against the I curtain it drops down.v Possibly other ma- "terial'may pass through the curtain and be projected against the side of the housing or against the back of the housing. Most of u may stickor adhere u I i it, however, is stopped completely and drops through to the open bottom of the housing.

That material which strikes the walls which is wetor sticky may stick uppn them, or it on t e bars. It is Jarred loose, however, y the constant lifting u and droppin down of the housing, cause 'by the rotation of the cam on the lifting shaft. This cam rotates much less 1 ing rapidly than does the shaft B, for instance, I

prefer to rotate the shaft B at 800 revolutions a minute, and the cam shaft at possibly a tenth of that or possibly less. The cam operates to lift up the whole housing oscillatit through a small are about a pivotal point and let it drop down upon the anvil.

' screen along converging ing in the intermixing and intermingling of he sudden stoppage or jolt will jar loose the material and keep clean.

, The inclination of the frontof the workthe surfaces always ing surface of the beater arms results in throwing the materialfrom one side .of the beater toward the opposite side of the housing. The result isthat the different groups ofmaterial are thrown against the moving ines, thus assistthe separate particles of materiah- When the material is fed into themachine its path descends through the beating 1 zone, and an inspection. of Fig. lwill show thatv in the preferred form of the machinethe entire path of such material is traversed by bladesof the beater. The net result is that all of the material or substantially all of it receives a blow from the rapidly rotatin'g beater blades.

.-All such material is therefore violently causing As soon as it strikes this.

ticles. I

' ing is propelled throu h the housing, and much,

if not all of; it, would strike theopposite Wall of the housing, thus cutting it out and the adhesive articles to stick to the These difliculties are obviated by interposin the permeable metallic curtain which I ave here shown as a series of rods. These rods receive substantially all of the wall.

material and further separate its particles and prevent the greater part of it from passing through or, to the opposite wall.

ceives a blow or shock when the housing drops upon the anvil. This tends to clear the housing and the beater or curtain or botli'as the case may be, from adhering par- Of course the structure-whereby the housraised and loweredis only one way of giving to the parts the jar or shock which is necessary to produce this clearing. eflect.

By the use of the curtaim' among other things I obviate the necessity of having the housing made of great length.

The action of these curtain rods is improved by I claim: 1. A sand beater comprising a housing open at the bottom and closed on the sides and top, a feed chute at-the top and a beater contained therein, means for preventing the accumulation ofmaterial t rown by the beater upon the walls of the housing, said means comprising means for raisingthe housing and suddenly dropping it.

2. A sand beater comprising a housing open at the bottom and closed on the sides and top,'a feed chute at the top, a beater contained therein,

ing pivoted and supported at one place by said anvil, means for raising the housing and then dropping it on the anvil.

3. A sand beater comprising .a housing, an a'nvilblock, the housing being pivotally supported at one side and restin on the anvil block at another, a rotatab e beater contained within but out of contact withthe housing, means for discharging material into the housing upon the'beater, means for driving-the beater, and means for raising said means conn'ecte with and driven by the beater shaft.

an anvil, the housing be- I the housing and dr'o ping it upon the anvil,

4. A sand beater comprising a housing the bottom and'closed on the sides and top, a feed chute at the top and a beater contained therein, means for reventingthe accumulation of material t rown by the beater upon the wallsof the housing, said open at means comprising means for raising themounted independent of the housing.

beater mounted independent of the housing.

6. A sand beater comprising a housing open at" the bottom and closed on the sides and top, a feed chute at the top, a beater contained therein, an anvil, the housing being pivoted and supported at one place by said anvil, means for raising the housing and then drppping it on the anvil, said means comprising a cam driven in response to the rotation of the beater sald heater 7.- A 'san-d beater comprising a housing 'open at the bottom and closed on the sides I and top, a feed chute at the top and a beater contained therein, means for preventing the accumulation of material thrown by the beaterv upon the walls of the. housing, said means comprising means for raising the housing and suddenly dropping it, and a curtain of rods interposed between the beater and the housing wall and secured to so as to rise and fall with the housing.

8,. A sand beater comprising a housing open alt-the bottom and closed on thesides andtop, a feed chute at the top, a beater contained therein, an anvil, the housing being pivoted and supported at one place by said anvil, means for raising the housing and then dropping it on the anvil, and a curtain of rods interposed between the heater and the housing wall and secured to so as to rise and fall with the housing.

9 A sand beater comprising a housing open at the bottom and closed on the sides and top, a feed chute at the top, a beater contained therein, an anvil, thehousing being pivoted and supported at one place by said anvil, means for raising the housing and then dropping it on the anvil, said means comprising a cam driven in response to the rotation of the beater, and a curtain of rods interposed between the beater and the housing wall and secured to so as to rise and fall with the housing.

10. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing in the path of the material, means for driving said beater at a high rate of speed, said beater adapted -to contact substantially all the material as it falls through the beater zone and to throw it violently through the housing, and a permeable metallic curtain between the beater and the wall of the housmg consisting of a series of swinging rods.

11. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing in the path of the material, means for driving said beater at ahigh rate ofspeed, said beater adapted to contactsubstantially all the material as it falls through the beater zone and to throw it violently through the housing, and apermeable metallic curtain be tween the beater and the wall of the housing conslstingof a series of swinging staggered .rods.

12. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing in the path of the material, ,means for driving said beater at ahigh rate of speed','said beater adapted to contact substantially all the material as it falls through the beater zone and to throw it violently through the housing, and a permeable metallic curtain between the beater and the wall of the housing, and means for automatically jarring said housing and curtain.

13. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing the path of the material, means for driving said: beater at a high rate of speed, said beater adapted to contact substantially all the ma.- terial as it falls through the beater zone and to throw it violently through the housing, and a permeable metallic curtain between the beater and the wall of the housing consisting of a series of staggered rods, and means for automatically jarring said housing and curtain.

14:. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing in the path of the material, means for driving said beater at a high rate of speed, said beater adapted to contact substantially all the material as it falls through the beater zone and to throw it violently through the housing, a permeable metallic curtain between the beater and the wall of the housing consisting of a series of swinging rods, and means for automatically jarring said housing and curtain.

1-5. The combination with a housing of means for feeding material thereto, a rotary beater mounted in the housing in the path of the material, means for driving saidbeater at a high rate of speed, said beater adapted to contact substantially all the material as it falls through the beater zone and to throw it violently through the housing, and a permeable metallic curtain between the beater and the wall of the housing consisting of a series of swinging staggered rods, and means for automatically jarring said housing and curtain.

16. A mixer for finely divided material comprising a housing, means for discharg- .ing the material thereinto and means located within the housing for projecting the material so discharged in a series of continuous streams along converging lines such that the particlesin said streams impinge one upon another and a yielding flexible curtain located in the path of said particles the curtain being adapted to receive the'particles after they have implnged one upon another. 1

17.. The combination with a housing of means for feeding material thereto, a rotary I beater mounted in the housing in the path of verging and interfering lines, the beating surfaces of said beaterarms being set at varying angles to the path of the material.

I The combination with a housing. of

means for feeding material thereto, a rotary beater mounted in the housing in the path. 2 of the material, means for driving said a beater at a high rate of speed, said beater having beater arms projecting therefrom adapted to contact substantially all the ma terial as, it falls through the beater zone and to throw it violently through the housing along converging and interfering "lines, the l i I beating surfaces of said beater arms being set at varying angles to the path of thematerial, and a yielding permeable metallic curtain between the beater and the wall of the housing. v

T In testimony whereof, I aflix my signature in the presence of two witnesses this 12th day of June 1916.

V AXEL'G. J. RAPR' Witnesses: V

MINNIE M. LINDENAU, ,CHRISTINA DEANS. 

